In 2026, the cost of staying in a German castle varies wildly based on the level of luxury and the castle's historical significance. Budget-friendly "castle hotels" or those converted into youth hostels (like Burg Stahleck in the Rhine Valley) can cost as little as $50 to $100 per night. Mid-range 3 and 4-star castle hotels typically range from $150 to $300 per night, offering a comfortable "fairytale" experience with modern amenities. For ultra-luxury 5-star properties, such as the famous Schlosshotel Kronberg or Schloss Bensberg, prices can range from $400 to over $1,000 per night, particularly for suites with panoramic views. It is a peer-to-peer "pro-tip" to look for "Burg" (fortress) hotels if you want a more rugged, medieval feel, or "Schloss" (palace) hotels for a more refined, regal experience. Booking during the "shoulder" seasons (April or October) can often net you a 20-30% discount compared to the busy summer months.